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Data analysis of Q-value measurements for double-electron capture with SHIPTRAP

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Roux,  Christian-Eric
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Blaum,  Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Eliseev,  Sergey
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Goncharov,  Mikhail
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Fakultät für Physik und Astronomie, Ruprecht-Karls-Universität;

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Citation

Roux, C.-E., Blaum, K., Block, M., Droese, C., Eliseev, S., Goncharov, M., et al. (2013). Data analysis of Q-value measurements for double-electron capture with SHIPTRAP. European Physical Journal D, 67(7): 146, pp. 1-9. doi:10.1140/epjd/e2013-40110-x.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-FB3A-E
Abstract
A measurement campaign has been carried out for the search for resonantly enhanced neutrinoless double-electron-capture transitions by the determination of the Qεε -values with the SHIPTRAP Penning-trap mass spectrometer. The Qεε -values have been determined by measuring the cyclotron-frequency ratios of the mother and daughter nuclides of the transitions. This article describes the experimental approach and the data analysis by the example of neutrinoless double-electron capture in 152 Gd. Various effects as, e.g., temporal fluctuations and spatial inhomogeneity of the magnetic field, or the variation of the ion number in the trap were found not to affect the frequency ratio on the 1 ppb-level, which is the present statistical uncertainty.